Examples of ChannelFuture

com.facebook.presto.jdbc.internal.netty.channel.ChannelFuture
- NEVER DO THIS {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, {@link MessageEvent} e) {if (e.getMessage() instanceof GoodByeMessage) { {@link ChannelFuture} future = e.getChannel().close();future.awaitUninterruptibly(); // Perform post-closure operation // ... } } // GOOD {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, {@link MessageEvent} e) {if (e.getMessage() instanceof GoodByeMessage) { {@link ChannelFuture} future = e.getChannel().close();future.addListener(new {@link ChannelFutureListener}() { public void operationComplete( {@link ChannelFuture} future) {// Perform post-closure operation // ... } }); } }
In spite of the disadvantages mentioned above, there are certainly the cases where it is more convenient to call {@link #await()}. In such a case, please make sure you do not call {@link #await()} in an I/O thread. Otherwise,{@link IllegalStateException} will be raised to prevent a dead lock.
Do not confuse I/O timeout and await timeout
The timeout value you specify with {@link #await(long)}, {@link #await(long,TimeUnit)}, {@link #awaitUninterruptibly(long)}, or {@link #awaitUninterruptibly(long,TimeUnit)} are not related with I/Otimeout at all. If an I/O operation times out, the future will be marked as 'completed with failure,' as depicted in the diagram above. For example, connect timeout should be configured via a transport-specific option:
```
 // BAD - NEVER DO THIS {@link ClientBootstrap} b = ...;{@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(10, TimeUnit.SECONDS); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { // You might get a NullPointerException here because the future // might not be completed yet. f.getCause().printStackTrace(); } else { // Connection established successfully } // GOOD {@link ClientBootstrap} b = ...;// Configure the connect timeout option. b.setOption("connectTimeoutMillis", 10000); {@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(); // Now we are sure the future is completed. assert f.isDone(); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { f.getCause().printStackTrace(); } else { // Connection established successfully } 
```
@apiviz.landmark @apiviz.owns com.facebook.presto.jdbc.internal.netty.channel.ChannelFutureListener - - notifies
io.netty.channel.ChannelFuture
- NEVER DO THIS {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, GoodByeMessage msg) {{@link ChannelFuture} future = ctx.channel().close();future.awaitUninterruptibly(); // Perform post-closure operation // ... } // GOOD {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, GoodByeMessage msg) {{@link ChannelFuture} future = ctx.channel().close();future.addListener(new {@link ChannelFutureListener}() { public void operationComplete( {@link ChannelFuture} future) {// Perform post-closure operation // ... } }); }
In spite of the disadvantages mentioned above, there are certainly the cases where it is more convenient to call {@link #await()}. In such a case, please make sure you do not call {@link #await()} in an I/O thread. Otherwise,{@link BlockingOperationException} will be raised to prevent a dead lock.
Do not confuse I/O timeout and await timeout
The timeout value you specify with {@link #await(long)}, {@link #await(long,TimeUnit)}, {@link #awaitUninterruptibly(long)}, or {@link #awaitUninterruptibly(long,TimeUnit)} are not related with I/Otimeout at all. If an I/O operation times out, the future will be marked as 'completed with failure,' as depicted in the diagram above. For example, connect timeout should be configured via a transport-specific option:
```
 // BAD - NEVER DO THIS {@link Bootstrap} b = ...;{@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(10, TimeUnit.SECONDS); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { // You might get a NullPointerException here because the future // might not be completed yet. f.getCause().printStackTrace(); } else { // Connection established successfully } // GOOD {@link Bootstrap} b = ...;// Configure the connect timeout option. b.setOption( {@link ChannelOption}.CONNECT_TIMEOUT_MILLIS, 10000); {@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(); // Now we are sure the future is completed. assert f.isDone(); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { f.getCause().printStackTrace(); } else { // Connection established successfully } 
```
net.gleamynode.netty.channel.ChannelFuture
@author The Netty Project (netty@googlegroups.com) @author Trustin Lee (trustin@gmail.com) @version $Rev: 476 $, $Date: 2008-07-04 15:06:37 +0900 (Fri, 04 Jul 2008) $ @apiviz.landmark @apiviz.owns net.gleamynode.netty.channel.ChannelFutureListener - - notifies
net.minecraft.util.io.netty.channel.ChannelFuture
org.elasticsearch.common.netty.channel.ChannelFuture
org.jboss.netty.channel.ChannelFuture
The result of an asynchronous {@link Channel} I/O operation.
All I/O operations in Netty are asynchronous. It means any I/O calls will return immediately with no guarantee that the requested I/O operation has been completed at the end of the call. Instead, you will be returned with a {@link ChannelFuture} instance which tells you when the requested I/Ooperation has succeeded, failed, or cancelled.
Various methods are provided to let you check if the I/O operation has been completed, wait for the completion, and retrieve the result of the I/O operation. It also allows you to add more than one {@link ChannelFutureListener}so you can get notified when the I/O operation has been completed. @author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @version $Rev: 987 $, $Date: 2009-03-04 23:27:20 +0900 (Wed, 04 Mar 2009) $ @apiviz.landmark @apiviz.owns org.jboss.netty.channel.ChannelFutureListener - - notifies

Examples of org.jboss.netty.channel.ChannelFuture

        }
        if(path.equals("/")) {
          path = "index.html";
        }
        
        ChannelFuture writeFuture =  null;
        if(inJar) {
          writeFuture = writeResponseFromResource(ctx, e, request, path);
        } else {
          writeFuture = writeResponseFromFile(ctx, e, request, path);
        }


        // Decide whether to close the connection or not.
        if (writeFuture!=null && !isKeepAlive(request)) {
            // Close the connection when the whole content is written out.
            writeFuture.addListener(ChannelFutureListener.CLOSE);
        }
    }

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Examples of org.jboss.netty.channel.ChannelFuture


        // Write the initial line and the header.
        ch.write(response);


        // Write the content.
        ChannelFuture writeFuture;
        if (ch.getPipeline().get(SslHandler.class) != null) {
            // Cannot use zero-copy with HTTPS.
            writeFuture = ch.write(new ChunkedFile(raf, 0, fileLength, 8192));
        } else {
            // No encryption - use zero-copy.
            final FileRegion region =
                new DefaultFileRegion(raf.getChannel(), 0, fileLength);
            writeFuture = ch.write(region);
            final String finalPath = path;
            writeFuture.addListener(new ChannelFutureProgressListener() {
                public void operationComplete(ChannelFuture future) {
                    region.releaseExternalResources();
                }


                public void operationProgressed(

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Examples of org.jboss.netty.channel.ChannelFuture

        }


        Channel channel = getFactory().newChannel(bossPipeline);


        // Wait until the future is available.
        ChannelFuture future = null;
        boolean interrupted = false;
        do {
            try {
                future = futureQueue.poll(Integer.MAX_VALUE, TimeUnit.SECONDS);
            } catch (InterruptedException e) {
                interrupted = true;
            }
        } while (future == null);


        if (interrupted) {
            Thread.currentThread().interrupt();
        }


        // Wait for the future.
        future.awaitUninterruptibly();
        if (!future.isSuccess()) {
            future.getChannel().close().awaitUninterruptibly();
            throw new ChannelException("Failed to bind to: " + localAddress, future.getCause());
        }


        return channel;
    }

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Examples of org.jboss.netty.channel.ChannelFuture

    HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
    response.setHeader(CONTENT_LENGTH, cb.readableBytes());
    response.setHeader(CONTENT_TYPE, "application/json");
    response.setHeader(CACHE_CONTROL, "no-cache");
    response.setContent(cb);
    ChannelFuture cf = Channels.future(channel);
    ctx.sendDownstream(new DownstreamMessageEvent(channel, cf, response, channel.getRemoteAddress()));
    
  }

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Examples of org.jboss.netty.channel.ChannelFuture

        HttpRequest request = (HttpRequest)message;
        int metricCount = processMetric(request);
        HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
        response.setContent(ChannelBuffers.copiedBuffer("\n" + metricCount + "\n", CharsetUtil.UTF_8));
        response.setHeader(CONTENT_TYPE, "text/plain");
        ChannelFuture future = Channels.future(channel);
        ctx.sendDownstream(new DownstreamMessageEvent(channel, future, response, channel.getRemoteAddress()));
        future.addListener(ChannelFutureListener.CLOSE);        
      }
    }
    ctx.sendUpstream(e);
  }

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Examples of org.jboss.netty.channel.ChannelFuture

            res.setContent(ChannelBuffers.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8));
            setContentLength(res, res.getContent().readableBytes());
        }


        // Send the response and close the connection if necessary.
        ChannelFuture f = ctx.getChannel().write(res);
        if (!isKeepAlive(req) || res.getStatus().getCode() != 200) {
            f.addListener(ChannelFutureListener.CLOSE);
        }
    }

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Examples of ChannelFuture

Do not confuse I/O timeout and await timeout

Do not confuse I/O timeout and await timeout

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture